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Full water-soluble nitro compound fertilizer and preparation method thereof

A nitro compound fertilizer, water-soluble technology, applied in the direction of fertilization device, fertilizer mixture, application, etc., to prevent the particles from sticking to the block

Active Publication Date: 2012-04-18
广东拉多美化肥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as Chinese patent 03139601.1, discloses that nitro compound fertilizer is made into by certain weight ratio by ammonium nitrate, nitrogenous fertilizer, phosphate fertilizer, potash fertilizer, filler, and its phosphate fertilizer is agricultural monoammonium phosphate, and water insoluble matter is up to more than 15%, produced by prior art The compound fertilizer is not suitable for spraying and drip irrigation due to its water insoluble matter exceeding 5%.

Method used

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  • Full water-soluble nitro compound fertilizer and preparation method thereof
  • Full water-soluble nitro compound fertilizer and preparation method thereof
  • Full water-soluble nitro compound fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] The fully water-soluble nitro compound fertilizer of the present embodiment mainly comprises following parts by weight material: modified ammonium nitrate: industrial monoammonium phosphate: potassium chloride: borax=1: 0.8: 0.5: 0.2, wherein said modified ammonium nitrate is Contains P 2 o 5 6 wt% modified ammonium nitrate.

[0035] (1) In the melting pot, add P 2 o 5 1 part of 6wt% modified ammonium nitrate and 0.128 part of industrial monoammonium phosphate (mixture P 2 o 5 content of 12wt%), the temperature is controlled at 165°C, under constant stirring, it is indirectly heated and melted with steam, and when the pot is full, it overflows into the primary mixing pot through the feed pipe;

[0036] (2) In the primary mixing pot, add 0.672 parts of industrial monoammonium phosphate to the melted material, keep stirring and heating, control the temperature at 150°C, and the mixed melt will naturally overflow to the secondary mixing pot ;

[0037] (3) Add 0.5 pa...

Embodiment 2

[0042] The fully water-soluble nitro compound fertilizer of the present embodiment mainly comprises following parts by weight material: modified ammonium nitrate: industrial monoammonium phosphate: potassium sulfate: EDTA complex or boron fertilizer=1: 0.3: 0.9: 0, wherein said Modified ammonium nitrate containing P 2 o 5 10 wt% modified ammonium nitrate.

[0043] (1) In the melting pot, add P 2 o 5 1 part of 10wt% modified ammonium nitrate, control the temperature at 172°C, heat and melt indirectly with steam under constant stirring, and overflow into the first-stage mixing pot through the material pipe after the pot is full;

[0044] (2) In the primary mixing pot, add 0.3 parts of industrial monoammonium phosphate to the molten modified ammonium nitrate, keep stirring and heating, control the temperature at 160°C, and the mixed melt will naturally overflow to the secondary mixing pot;

[0045] (3) Add 0.9 parts of potassium sulfate in the secondary mixing pot, heat and ...

Embodiment 3

[0050] The fully water-soluble nitro compound fertilizer of the present embodiment mainly includes the following materials in parts by weight: modified ammonium nitrate: industrial monoammonium phosphate: potassium sulfate: EDTA-Cu=1: 0.55: 0.7: 0.055, wherein the modified ammonium nitrate for containing P 2 o 5 10 wt% modified ammonium nitrate.

[0051] (1) In the melting pot, add P 2 o 5 1 part of 10wt% modified ammonium nitrate, control the temperature at 168°C, heat and melt indirectly with steam under constant stirring, and overflow into the first-stage mixing pot through the material pipe after the pot is full;

[0052] (2) In the primary mixing pot, add 0.55 parts of industrial monoammonium phosphate to the molten modified ammonium nitrate, keep stirring and heating, control the temperature at 155°C, and the mixed melt will naturally overflow to the secondary mixing pot;

[0053] (3) Add 0.7 parts of potassium sulfate and 0.055 parts of EDTA-Cu into the secondary m...

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Abstract

The invention discloses a full water-soluble nitro compound fertilizer and a preparation method thereof. The full water-soluble nitro compound fertilizer uses modified ammonium nitrate and / or ammonium sulfate as the nitrogen source, industrial monoammonium phosphate or potassium dihydrogen phosphate as the phosphorus source, potassium chloride and / or potassium sulfate as the potassium fertilizer, and ethylene diamine tetraacetic acid (EDTA) complex or boric fertilizer as the medium and trace element additive, wherein the weight ratio of the components is as follows: the ratio of the modified ammonium nitrate to the industrial monoammonium phosphate to the potassium fertilizer to the EDTA complex or boric fertilizer is 1:(0.3-0.8):(0.5-0.9):(0-0.2); or the ratio of the modified ammonium nitrate to the potassium dihydrogen phosphate to the potassium fertilizer to the EDTA complex or boric fertilizer is 1:(0.3-0.7):(0.2-0.5):(0-0.3), and the effective nutriments (N+P2O5+K2O) account for 48% or above; or the ratio of the modified ammonium nitrate to the ammonium sulfate to the industrial monoammonium phosphate to the potassium sulfate to the EDTA complex or boric fertilizer is 1:(0.10-0.95):(0.05-0.50):(0.25-0.75):(0-0.2). The preparation method mainly comprises the following steps: pulping, granulating, cooling and coating, wherein a multiple-step melting and mixing pulping method is used in the pulping step. By coating isolating membranes on the surfaces of the fertilizer granules to prevent the granules from bonding and agglomerating, the compound fertilizer can be used for spraying and trickle irrigation.

Description

technical field [0001] The invention relates to a fully water-soluble nitro compound fertilizer and a preparation method thereof. Background technique [0002] High-tower granulation production of compound fertilizer first originated in Norway in the 1960s, and my country began at the beginning of this century and flourished after 2008. Because of its low moisture content, it is not easy to agglomerate, and the surface of the granules is smooth and has small holes, which has won the favor of farmers. Most of the prior art production of high-tower compound fertilizers uses water-insoluble fillers, such as Chinese patent 200410077770.2, which discloses the use of water-insoluble additive quartz powder in the compound fertilizer pulping process to reduce the surface tension and viscosity of the slurry and improve the slurry. Pulp fluidity. Such as Chinese patent 03139601.1, discloses that nitro compound fertilizer is made into by certain weight ratio by ammonium nitrate, nitr...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王晓春罗冬贵
Owner 广东拉多美化肥有限公司
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